[R] JAGS/BUGS on gene expression data

From: nblarson <nblarson_at_gmail.com>
Date: Mon, 14 Mar 2011 08:06:40 -0700 (PDT)

Has anybody had issues running MCMC (either BUGS or JAGS) on data sets of this magnitude (ie 30k x 20-30). I've been trying to run a hierarchical random effects model on expression data but R completely stalls out on jobs run on 32bit R on our server (doesn't respond...then eventually crashes out with an exception fault). Would using 64bit R help with JAGS? (As far as I know there's only a 32bit build of BRugs so BUGS is out) Currently the server doesn't have 64 bit JAGS installed but I've put in a request. It seems that compiling the model is what's crashing R at this point.

My last resort is to hardcode everything in C, but I'd like to avoid that.

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